Container construction with flexible liner and one-way valve
AssigneeSonoco Development, Inc.
InventorsSabrina V. Dixon-Garrett, Lawrence Robert Carpenter
Life of this patent
Estimating the term…
Abstract
In an embodiment, the invention comprises a container comprising: a base; at least one sidewall extending upwardly from the base and terminating in a top edge, wherein the at least one sidewall is paper-based; a removable flexible membrane adhered to the top edge, wherein the membrane comprises a one-way valve; a liner ply at least partially adhered to an interior surface of the sidewall, wherein the liner ply is configured to at least partially release from the sidewall upon a pressure differential between the pressure within the container and the external pressure.
Claims20
A container comprising:
- a base;
- at least one sidewall extending upwardly from the base and terminating in a top edge, wherein the at least one sidewall is paper based;
- a removable flexible membrane adhered to the top edge, wherein the membrane comprises a one-way valve;
- a liner ply adhered to an interior surface of the sidewall with a releasable adhesive, wherein the liner ply is configured to at least partially release from the sidewall upon a first pressure differential between the pressure within the container and an external pressure;
- and
- wherein the adhesive is resealable and configured to allow readherence of the liner ply to the container sidewall upon a second pressure differential between the pressure within the container and an external pressure.
A container comprising:
- a base;
- at least one sidewall extending upwardly from the base and terminating in a top edge, wherein the at least one sidewall is paper based;
- a removable flexible membrane adhered to the top edge, wherein the membrane comprises a one-way valve;
- and
- a liner ply attached to the base and a top edge of the sidewall, wherein the liner ply is at least partially adhered to an interior surface of the sidewall with a releasable adhesive, wherein at least 50% of the liner ply is configured to at least partially release from the sidewall between the base and the top edge, upon a pressure differential between the pressure within the container and an external pressure, and wherein the adhesive maintains its adhesion along the container sidewall nearest the base and top edge, regardless of pressure differential.
A container comprising:
- a base;
- at least one sidewall extending upwardly from the base and terminating in a top edge, wherein the at least one sidewall is paper based;
- a removable flexible membrane adhered to the top edge, wherein the membrane comprises a one-way valve;
- a liner ply attached to an interior surface of the sidewall, wherein the liner ply is at least partially adhered an interior surface of the sidewall with a releasable adhesive, wherein the liner ply is configured to at least partially release from a midsection of the interior surface between the base and the top edge, upon a pressure differential between the pressure within the container and an external pressure;
- and
- wherein the liner ply may repeatedly release from and reseal from the midsection of the interior surface of the sidewall as pressure differentials occur.
Dependencies are inferred from the claim text.